Logitech offers the Logitech Z623 THX-Certified 2.1-Channel Speaker System, model no. 980-000402, for $149.99. Coupon code “logi-z623-81211” drops it to $99.99. With free shipping, that’s the lowest total price we could find by $28, although it was $5 less last month (since expired). Sales tax is added where applicable. It features 200 watts RMS of total system power via two satellite speakers and a subwoofer. Also included is a headphone jack.